-16x^2+60x=-255

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Solution for -16x^2+60x=-255 equation:


Simplifying
-16x2 + 60x = -255

Reorder the terms:
60x + -16x2 = -255

Solving
60x + -16x2 = -255

Solving for variable 'x'.

Reorder the terms:
255 + 60x + -16x2 = -255 + 255

Combine like terms: -255 + 255 = 0
255 + 60x + -16x2 = 0

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-15.9375 + -3.75x + x2 = 0

Move the constant term to the right:

Add '15.9375' to each side of the equation.
-15.9375 + -3.75x + 15.9375 + x2 = 0 + 15.9375

Reorder the terms:
-15.9375 + 15.9375 + -3.75x + x2 = 0 + 15.9375

Combine like terms: -15.9375 + 15.9375 = 0.0000
0.0000 + -3.75x + x2 = 0 + 15.9375
-3.75x + x2 = 0 + 15.9375

Combine like terms: 0 + 15.9375 = 15.9375
-3.75x + x2 = 15.9375

The x term is -3.75x.  Take half its coefficient (-1.875).
Square it (3.515625) and add it to both sides.

Add '3.515625' to each side of the equation.
-3.75x + 3.515625 + x2 = 15.9375 + 3.515625

Reorder the terms:
3.515625 + -3.75x + x2 = 15.9375 + 3.515625

Combine like terms: 15.9375 + 3.515625 = 19.453125
3.515625 + -3.75x + x2 = 19.453125

Factor a perfect square on the left side:
(x + -1.875)(x + -1.875) = 19.453125

Calculate the square root of the right side: 4.410569691

Break this problem into two subproblems by setting 
(x + -1.875) equal to 4.410569691 and -4.410569691.

Subproblem 1

x + -1.875 = 4.410569691 Simplifying x + -1.875 = 4.410569691 Reorder the terms: -1.875 + x = 4.410569691 Solving -1.875 + x = 4.410569691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.875' to each side of the equation. -1.875 + 1.875 + x = 4.410569691 + 1.875 Combine like terms: -1.875 + 1.875 = 0.000 0.000 + x = 4.410569691 + 1.875 x = 4.410569691 + 1.875 Combine like terms: 4.410569691 + 1.875 = 6.285569691 x = 6.285569691 Simplifying x = 6.285569691

Subproblem 2

x + -1.875 = -4.410569691 Simplifying x + -1.875 = -4.410569691 Reorder the terms: -1.875 + x = -4.410569691 Solving -1.875 + x = -4.410569691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.875' to each side of the equation. -1.875 + 1.875 + x = -4.410569691 + 1.875 Combine like terms: -1.875 + 1.875 = 0.000 0.000 + x = -4.410569691 + 1.875 x = -4.410569691 + 1.875 Combine like terms: -4.410569691 + 1.875 = -2.535569691 x = -2.535569691 Simplifying x = -2.535569691

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.285569691, -2.535569691}

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